Strawberry anthocyanin and its association with postprandial inflammation and insulin

Br J Nutr. 2011 Sep;106(6):913-22. doi: 10.1017/S0007114511001176. Epub 2011 May 16.

Abstract

The present study investigates the effect of strawberry antioxidants in beverage form on meal-induced postprandial inflammatory and insulin responses in human subjects. Overweight adults (n 24) consumed a high-carbohydrate, moderate-fat meal (HCFM) accompanied by either a strawberry or a placebo beverage in a cross-over design. Postprandial changes in plasma anthocyanins, their metabolites, insulin, glucose and inflammatory markers were assessed for 6 h. The postprandial concentrations of pelargonidin sulfate and pelargonidin-3-O-glucoside were significantly increased when the strawberry beverage was consumed concurrently with the HCFM compared with the placebo beverage (P < 0·001). The strawberry beverage significantly attenuated the postprandial inflammatory response as measured by high-sensitivity C-reactive protein and IL-6 (P < 0·05) induced by the HCFM. It was also associated with a reduction in postprandial insulin response (P < 0·05). Collectively, these data provide evidence for favourable effects of strawberry antioxidants on postprandial inflammation and insulin sensitivity.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Anthocyanins / chemistry
  • Anthocyanins / metabolism*
  • Beverages
  • C-Reactive Protein / metabolism
  • California
  • Cross-Over Studies
  • Female
  • Fragaria / metabolism*
  • Glucosides / metabolism
  • Humans
  • Inflammation / drug therapy
  • Inflammation / metabolism*
  • Insulin / metabolism*
  • Interleukin-6 / metabolism
  • Male
  • Middle Aged
  • Oxidants / chemistry
  • Oxidative Stress
  • Placebos
  • Postprandial Period
  • Single-Blind Method
  • Sulfates / chemistry
  • Time Factors

Substances

  • Anthocyanins
  • Glucosides
  • Insulin
  • Interleukin-6
  • Oxidants
  • Placebos
  • Sulfates
  • pelargonidin
  • pelargonidin-3-glucoside
  • C-Reactive Protein